Wow, I feel like a weakling compared to you oddballs.  I sleep about 9 hours average, with a record of 16 hours.  The longest no-sleep-straight was 36 hours, which seems to pale in comparison to you wierdos. 

  I don't know how anyone can live on 4 hours of sleep a day.  After 3 days of that, I felt big-time hallucinations.  Interestingly enough, I think that loosened my sense of reality or something, 'cause now I get hallucinations if I stay up for only 24 hours in a row.
  By the way, when you people mean hallucinations, how much interaction is there?  Because I find myself having conversations with people who aren't there, and I don't think that's normal.
  But again, my record feels small now thanks to you people.  However, I knew someone at the cannery with ADHD, so he got 0-2 (2 more often)hours of sleep for like...2 weeks in a row.  He was kinda funny. 
 
  P.S.  How normal is this:  I've seen the words on a comp. game begin to contort and change colors......turned out the game didn't HAVE any words!  This was while walking around in Morrowind, then shortly after, I could swear the NPC's in the Mages' Guild started dancing.  What kind of things do you people see in your hallucinations?
  P.P.S.  I disagree Gandalf.  Although I will gladly sleep in 'till 11 A.M. if allowed, when my alarm goes off at 7 A.M., I leap outta bed to push the "button to make the noise stop", and my mind is gone for a while.  But that's little, considering I used to wake up at 3:30 A.M., and I did NOT want to do that.  And if it matters, I've never pressed that "Snooze" button.